# Rudolf Kallus
**Wikidata**: [Q24639808](https://www.wikidata.org/wiki/Q24639808)  
**Source**: https://4ort.xyz/entity/rudolf-kallus


## References

1. Czech National Authority Database
2. [REGO](https://aleph.vkol.cz/F/?func=find-c&ccl_term=sys=000001330&local_base=svk04)
3. Virtual International Authority File
4. OsobnostiRegionu.cz